公开(公告)号：US10019969B2

公开(公告)日：2018-07-10

申请号：US14329764

申请日：2014-07-11

Applicant: Apple Inc.

Inventor： Charles Edwall ,  Alexis Allison Iskander

IPC: G09G5/393 ,  G09G5/14

CPC classification number: G09G5/393 ,  G09G5/14 ,  G09G2330/022

Abstract: An image can be presented using render-tiles, which are movable rendering contexts in which multiple image-tiles can be drawn as a single image. To optimize performance, the render-tiles can be large enough to minimize the number of render-tiles necessary to present the image within the screen view of a client device, while remaining small enough to avoid memory or performance issues when panning or zooming the image. A set of active image-tiles and active render-tiles can be identified based on a specified view boundary that represents a portion of the image that is presented by a client device. The active render-tiles can be presented by the client device and the image-tiles can be drawn into the render-tiles to present the image. The render-tiles can be generated as needed and inactive render-tiles can be stored for later use or recycled.

公开(公告)号：US20150262556A1

公开(公告)日：2015-09-17

申请号：US14329764

申请日：2014-07-11

Applicant: Apple Inc.

Inventor： Charles Edwall ,  Alexis Allison Iskander

IPC: G09G5/391 ,  G06F3/14

CPC classification number: G09G5/393 ,  G09G5/14 ,  G09G2330/022

Abstract: An image can be presented using render-tiles, which are movable rendering contexts in which multiple image-tiles can be drawn as a single image. To optimize performance, the render-tiles can be large enough to minimize the number of render-tiles necessary to present the image within the screen view of a client device, while remaining small enough to avoid memory or performance issues when panning or zooming the image. A set of active image-tiles and active render-tiles can be identified based on a specified view boundary that represents a portion of the image that is presented by a client device. The active render-tiles can be presented by the client device and the image-tiles can be drawn into the render-tiles to present the image. The render-tiles can be generated as needed and inactive render-tiles can be stored for later use or recycled.

Abstract translation: 可以使用渲染图块呈现图像，其是可移动渲染上下文，其中可以绘制多个图像瓦片作为单个图像。 为了优化性能，渲染图块可以足够大，以最小化在客户端设备的屏幕视图内呈现图像所需的渲染图块的数量，同时保持足够小以在平移或缩放图像时避免存储器或性能问题 。 可以基于表示由客户端设备呈现的图像的一部分的指定视图边界来识别一组活动的图像瓦片和活动的渲染瓦片。 活动的渲染瓦片可以由客户端设备呈现，并且可以将图像瓦片绘制到渲染瓦片中以呈现图像。 可以根据需要生成渲染图块，并且可以存储非活动渲染图块以备以后使用或回收。